Consult with your doctor if you experience recurrent, sudden, severe dizziness or prolonged episodes of dizziness, faintness, lightheadedness or vertigo. 1  Definition. 2  Causes.
Dosage of castor oil for constipation relief. Castor oil is taken internally. According to Dr.Mercola and World Health Organization the castor oil intake should not prevail 0.7 mg/kg body weight per day. It is one tablespoon for adults and one teaspoon for children.
Taking Castor Oil Repeatedly. 1  1. Prepare your dosage. 2  2. Take your dose at the same time every day. 3  3. Discontinue use after 7 days.  4. Watch for signs of an 1  overdose. 5. Contact your doctor if you still have problems with constipation.